Los Angeles parents who have been kept off their child’s school campus because of disruptive behavior now have a way to appeal principals’ decisions.

Under current California law, principals can send what are called “disruptive person letters” to parents or other adults who pose a risk to students or staff. That letter requires that if the parent wants to come to school, he or she needs to call ahead

Charter school supporters take part last month in a rally at Huntington Park City Hall to protest a local moratorium on new charter schools. The moratorium is now the subject of a lawsuit.

Charter school supporters take part last month in a rally at Huntington Park City Hall to protest a local moratorium on new charter schools. The moratorium is now the subject of a lawsuit. (Allen J. Schaben/Los Angeles Times)

A group representing charter schools has sued the city of Huntington Park over its decision to impose a yearlong moratorium on new charters.

The suit, which was filed Thursday in Los Angeles County Superior Court, seeks to invalidate the restrictions that the Huntington Park City Council approved last month by a 4-1 vote.